baber/WOPTO huggingface dataset:
Patent CA-2065245-C (CA)
Title: Recombinant negative strand rna virus expression systems and vaccines
Inventor: PALESE PETER
IPC: C12N15/11
Filed: 1990-08-27
Granted: 2002-11-12
Abstract: Recombinant negative strand virus RNA templates which may be used to express heterologous gene products and/or to construct chimeric viruses are described. Influenza viral polymerase, which was prepared depleted of viral RNA, was used to copy small RNA templates prepared from plasmid-encoded sequences. Template constructions containing only the 3' end of genomic RNA were shown to be efficiently copied, indicative that the promoter lay solely within the 15 nucleotide 3' terminus. Sequences not specific for the influenza viral termini were not copied, and, surprisingly, RNAS containing termini identical to those from plus sense cRNA were copied at low levels. The specificity for recognition of the virus-sense promoter was further defined by site-specific mutagenesis. It was also found that increased levels of viral protein were required in order to catalyze both the cap-endonuclease primed and primer-free RNA synthesis from these model templates as well as from genomic length RNAs. This indicated that this reconstituted system has catalytic properties very similar to those of native viral RNPs. High levels of expression of a heterologous gene was obtained using the constructs and methods described.
Patent CA-2068219-C (CA)
Title: Regulated bifurcated power supply
Inventor: PARKS ROBERT A
IPC: G05F1/56
Filed: 1990-12-14
Granted: 1996-05-21
Abstract: The regulated power supply employs two separate sources of power (28, 30) which are serially connected by a variable impedance element, such as a transistor (32), connected between the two power sources. Output vol-tage of the power supply is equal to the sum of the individual power supply voltages minus a voltage drop across the variable impedance element. A sensor circuit (38) employing standby and active mode branches (40, 42) is coupled between output terminals of the pow-er supply for control of the variable imped-ance element. The active branch of the sensor is switchably connected to an output power terminal (22) of the supply so as to be opera-tive only during the active mode. The standby branch comprises a resistive network (52) cou-pled to a reference diode (44) while the active branch comprises a feedback amplifier (58) coupled to the reference diode.
Patent CA-2069811-C (CA)
Title: Projective training system for neural networks
Inventor: DENKER JOHN STEWART
IPC: G06K9/66
Filed: 1992-05-28
Granted: 1998-08-11
Abstract: In order for neural network technology to make useful determinations of the identity of letters and numbers that are processed in real time at a postal service sorting center, it is necessary for the neural network to "learn" to recognize accurately the many shapes and sizes in which each letter or number are formed on the address surface of the envelope by postal service users. It has been realized that accuracy in the recognition of many letters and numbers is not appreciably sacrificed if the neural network is instructed to identify those characteristics of each letter or number which are in the category "invariant." Then, rather than requiring the neural network to recognize all gradations of shape, location, size, etc. of the identified invariant characteristic, a generalized and bounded description of the invariantsegments is used which requires far less inputting of sample data and less processing of information relating to an unknown letter or number.
Patent CA-2070273-C (CA)
Title: Combined connector for coupling electrical conductors and optical conductors respectively
Inventor: KIRMA SAFA
IPC: G02B6/26
Filed: 1992-06-02
Granted: 2003-04-15
Abstract: Electrical and optical couplings are provided in a common hous-ing for electrically and optically interconnecting respective cable ends. Such cables have a central optical conductor sur-rounded by an electrical conductor, preferably a wire mesh con-ductor. The coupling components cooperate with each other for providing a secure electrical connection and a precise optical coupling, while simultaneously protecting the optical conductor against damage and against excessive bending. The electrical connection and the optical coupling are separate and do not interfere with each other.
Patent CA-2074155-C (CA)
Title: Herbicidal 4-acyl-5-arylisoxazoles
Inventor: CAIN PAUL A
IPC: C07D413/04
Filed: 1992-07-17
Granted: 2003-10-21
Abstract: 5-Aryl isoxazole derivatives of general formula (I):      wherein:    Ar represents phenyl optionally substituted substituted by one or more groups R2 or pyridyl substituted by one or more groups R2;      R represents :-hydrogen, -CO2R3, -COR4, cyano, halogen, alkyl or haloalkyl;      R1 represents :-alkyl, haloalkyl or cycloalkyl;      R2 represents :-a halogen atom, R4, nitro, -CO2R3, -OR4, -S(O)m R4, -S(O)m R5, -O-(CH2)p-OR4 or an alkyl group substituted by -OR4;      R3 and R4, which may be the same or different, each represent alkyl or haloalkyl;      R5 represents optionally substituted phenyl; p represents an integer from 1 to 3; and m represents zero, 1 or 2; -the herbicidal properties of these derivatives and their application to crop protection is described.
Patent CA-2074723-C (CA)
Inventor: BATT DOUGLAS GUY
IPC: A61K31/425
Filed: 1991-01-09
Granted: 2001-10-30
Abstract: Pyridylphenyl nitrogen heterocycle-substituted carbinols and derivatives thereof and pharmaceutical compositions containing such compounds are useful for treating inflammatory diseases in mammals. In particular, the compounds of the invention are useful in the treatment of the following inflammatory diseases including, but not limited to, rheumatoid arthritis, osteoarthritis, tendonitis, bursitis, psoriasis contact dermatitis, eczema, inflammatory bowel disease, uveitis and conjunctivitis.
Patent CA-2075458-C (CA)
Title: Melt crystallised xylitol
Inventor: DUROSS JAMES WIX
IPC: A23L27/30
Filed: 1992-08-06
Granted: 2004-01-20
Abstract: Melt crystallized xylitol possesses an agglomerated crystalline structure under a scanning electron microscope; an increased surface area rela-tive to aqueous crystallized xylitol, of at least about 0.12 square meters per gram; and unexpected hardness valuaa when compressed into a tablet, Chewing gum compositions comprising such melt crystal-lized xylitol are much less tacky and gritty compared to gum compositions comprising equal proportions of conventional aqueous crystallized xylitol of similar particle size distribution.
Patent CA-2075832-C (CA)
Inventor: RASMUSSEN JAMES M
IPC: G07D3/12
Filed: 1991-01-23
Granted: 1996-09-17
Abstract: A coin sorter comprises a rotatable disc (13) having a resilient surface (16) for receiving mixed denomination coins and imparting rotational movement to the coins, and a drive motor (14) for rotating the disc. A sorting area discriminates among coins of different denominations and selects coins of different denominations for discharge from the rotating disc at different locations (40-45) around the periphery of a guide plate (12). The sorting area includes at least two different selectors for a prescribed coin denomination for discharging coins of that prescribed denomination at two different locations around the periphery of the guide plate. A controllably actuatable shunt (80) or (90) is associated with the first of the two different selectors for shunting coins of the prescribed denomination past the first of the two different selectors to the second of the two different selectors so that the coins are discharged at the second of the two different locations.
Patent CA-2079119-C (CA)
Title: Mode field conversion fiber component and method for manufacturing the same
Inventor: YANAGAWA HISAHARU
IPC: G02B6/255
Filed: 1992-09-25
Granted: 2002-02-26
Abstract: The present invention provides a mode field conversion fiber component formed by fusion-connecting connection end surfaces of two optical components having different mode fields. The mode fields of the two opti-cal components are conformed to each other at the con-nection end surfaces, and are continuously varied near the connection end surfaces. The present invention also provides a method for manufacturing a mode field conver-sion fiber component, having the steps of butting connection end surfaces of two optical fibers having different mode fields, fusion-connecting the connection end surfaces of the two optical fibers, and heating a fusion-connecting portion of the connection end surfaces, diffusing core dopant, and conforming the mode fields of the two optical fibers.
Patent CA-2082599-C (CA)
Title: Modified polyalkoxy epoxy resins, a process for preparing them, and their use
Inventor: NEFFGEN BERND
IPC: C08L63/00
Filed: 1992-11-10
Granted: 2000-05-02
Abstract: The invention relates to modified polyoxyalkylene epoxy resins based on polyhydric phenols and prepared by the addition of polyethers and/or polyether monourethanes containing isocyanate groups to higher-moleecular-weight polyhydric glycidyl compounds, and to the use of these reaction products in the preparation of stable aqueous dispersions.
Patent CA-2084036-C (CA)
Title: Use of specific counteranions to modify the solubility of tetrazolium salts
Inventor: BLATT JOEL M
IPC: C07D417/04
Filed: 1992-11-27
Granted: 2001-02-20
Abstract: This invention relates to sulfonate and phosphonate salts of tetrazolium compounds wherein the anion X.theta.is represented by the formula: (see formula I) wherein R is an organic radical suitable for increasing the solubility of the tetrazolium salt in an aqueous or polar non-aqueous solvent, and the tetrazolium salt is represented by the formula: (see formula II) wherein X.theta. is the anion, R1 and R2 are phenyl groups and R3 is phenyl or 2-thiazolyl wherein the phenyl groups are unsubstituted or substituted as represented by the formula: (see formula III) wherein the Y groups, which can be the same or different, are alkoxy, aryloxy, alkyl, amido, alkylamido; arylamido, alkylthio, arylthio, halo, hydrogen, hydroxy, carbamoyl, carbalkoxy; carboxyl, cyano, nitro, sulfo, sulfonamido; sulfanoyl, trialkylamino or ureido. These salts possess enhanced solubility in various solvents which renders them particularly suitable for use as redox indicators in dry reagent, diagnostic test systems.
Patent CA-2085383-C (CA)
Title: Optical disc and method for manufacturing the same
Inventor: OHTA KENJI
IPC: G11B7/24
Filed: 1992-12-15
Granted: 1997-10-21
Abstract: An optical disc includes a recording film formed on one surface of a disc-shaped plastics substrate having light transmission properties, and an antistatic film formed on the other surface of the substrate to which an optical beam is applied, in which the plastics substrate is made by injection molding and a U-shaped annular groove or ridge is formed on the whole circumference on the surface, a radius of which is a distance between the center and a joint position of an injection mold, and a method for manufacturing the same.
Patent CA-2089479-C (CA)
Inventor: BROWN VERNON L
IPC: C23C18/20
Filed: 1992-06-08
Granted: 1998-01-20
Abstract: A unique process metallizes a substrate surface using a reducing agent including a borohydride to reduce, in a starved reaction, metal oxide particles (300) substantially uniformly distributed and at a controlled concentration in a particle filled resin (204) to produce catalytic island areas (301). The catalytic island areas (301) formed have a surface resistivity greater than 10 6 ohms per square. These catalytic island areas (301) are then electrolessly metallized to a predetermined thickness, such that adjacent catalytic island areas (301) are interconnected and form metallic features, such as pads, vias (213), and conductors (210, 211 and 212). The starved reaction limits the reduction of metal oxide particles (300) to catalytic island areas (301) and prevents migration of reduced metal beyond each of the exposed surfaces of particle-filled resin (204) which are to be metallized.
Patent CA-2090513-C (CA)
Title: Method and apparatus for providing antenna diversity
Inventor: SESHADRI NAMBIRAJAN
IPC: H04L27/18
Filed: 1993-02-26
Granted: 1998-02-03
Abstract: A method and apparatus providing antenna diversity is disclosed. A set of bits of a digital signal are used to generate a codeword of N symbols. Codewords are provided according to a channel code having a minimum Hamming distance, dmin, where 2~dm~N. N signals representing N symbols of a codeword are transmitted with N different antennas. The N transmitted signals are received and isolated. A sequence of N received symbols is formed from the isolated symbols and compared with one or more valid codewords to associate the sequence with a codeword. A set of bits based on a codeword associated with the received sequence is generated.
Patent CA-2092665-C (CA)
Title: Marine-seismic streamer having a device for damping vibrations
Inventor: WEICHART HELMUT
IPC: G01V1/20
Filed: 1993-03-12
Granted: 2000-02-22
Abstract: The invention relates to a marine-seismic streamer having a liquid-filled tube (4) in which there are arranged, in the longitudinal direction, hauling cables (3), flow-obstructing devices containing shaped pieces (2) which are spaced apart in the longitudinal direction, for dividing the streamer into sections and hydrophones (5). According to the invention, the shaped pieces (2) are of cylindrical construction with an outside diameter smaller than the inside diameter of the tube (4), such that an annular gap (9) is formed between the tube (4) and the shaped piece (2). The shaped pieces (2) have at least one annular seal (10), the outer diameter of the annular seal (10) corresponding to the inside diameter of the tube (4).
Patent CA-2093335-C (CA)
Title: Insect-specific paralytic neurotoxin genes for use in biological insect control: methods and composition
Inventor: TOMALSKI MICHAEL D
IPC: A01N63/50
Filed: 1991-10-01
Granted: 1999-08-03
Abstract: Genes encoding insect-specific paralytic neurotoxins, particularly those of insect-parasitic mites, including Pyemotes, are described. Recombinant DNA molecules in which the neurotoxin coding sequences are placed under the control of heterologous promoters are also described, Such molecules are useful for the development of biological insect control agents which produce insect-toxic levels of the neurotoxin. Specifically described are genetically altered baculoviruses which produce insect-specific paralytic neurotoxins and which display improved toxic effect on insects. Insect-toxic compositions are also provided. Methods of insect control using these neurotoxin genes, methods for production of neurotoxins in cells, and methods of production of insect control agents are described.
Patent CA-2094743-C (CA)
Title: Letter opener with protected recess for business card and removable slide-in cover
Inventor: CARNEY ALBERT P
IPC: B43M7/00
Filed: 1993-04-23
Granted: 2004-10-12
Abstract: A business card letter opener having printed indicia on one surface and a recess in the opposite surface sized to accomodate a business card and covered by a transparent cover lens which slides over the recess and is snap locked into place over the recess to protect the card and allow it to be viewed through the cover lens.
Patent CA-2095508-C (CA)
Title: Digital switching system connecting buses with incompatible protocols and telephone answering system and private automatic branch exchange with integrated voice and textual message recording
Inventor: ANDERSON KENT D
IPC: H04M3/00
Filed: 1993-05-04
Granted: 2003-08-05
Abstract: A digital switching system connecting buses with incompatible protocols and a telephone answering system and private automatic branch exchange with integrated voice and textual message recording is disclosed. The digital switching system (10) in accordance with the invention permits a digital switching matrix (12) having an input bus and an output bus to connect information on the input bus selectively to information on the output bus in response to control signals applied to switches of the switching matrix. A plurality of information systems (18, 20 and 22) each having a different bus protocol are electrically connected to the input and output buses of the switching matrix to permit information transmitted on a conductor of any of the information buses to be received by another conductor of any of the information buses through the input bus, the switching matrix and the output bus. A host processor controls the plurality of information systems.        Furthermore, the host processor may be used to commonly control textual message and voice message recording systems within a telephone answering system and commonly control telephony functions and textual message and voice recording systems within a PABX.
Patent CA-2099432-C (CA)
Inventor: RUSINCOVITCH GEORGE
IPC: B44C5/04
Filed: 1993-06-30
Granted: 2004-09-21
Abstract: The invention relates to pressure sensitive adhesive wallpaper which can be easily repositioned during initial contact with the surface of a wall. Once a final desired position is attained, the wallcovering of the present invention is caused to permanently adhere to the wall by the application of increased pressure to the decorative surface of the wallpaper.
Patent CA-2106954-C (CA)
Inventor: GHENT WILLIAM R
IPC: A61K47/48
Filed: 1992-03-18
Granted: 2002-10-22
Abstract: The present invention is concerned with the use of starch as a complexant with iodine for preparing dry powder pharma-ceutical formulations useful in the prepration of capsules or tablets. The helical structure of the amylose molecule and its abilim to complex with iodine make starch (amylose) a desirable carrier for the administration of iodine (I2) as a dry powder formula-tion in capsule or tablet form. These pharmaceutical formulations are particularly useful in the treatment of or the preven-tion of iodine deficiency diseases including breast dysplasia, breast cancer, endometriosis, premenstrual syndrome and radi-ation sickness from nuclear fallout.
Patent CA-2108237-C (CA)
Inventor: ABE TAIZO
IPC: G02F1/1341
Filed: 1993-10-12
Granted: 1999-09-07
Abstract: This invention presents methods and dispensers which are used for a new way of filling liquid crystal into a LCD cell. The invented methods use the invented liquid crystal dispenser able to release liquid crystal with sufficient controllability at an evacuated atmosphere. Liquid crystal is filled through an inlet of an assembled LCD cell, or filled by laminating an upper substrate with a lower substrate on which liquid crystal has been dropped. The invented liquid crystal dispensers have an opening, in addition to the opening for a capillary, through which interior air bubbles can be released out so as not to be released from the capillary.
Patent CA-2112077-C (CA)
Title: Network architecture for allocating flight inventory segments and resources
Inventor: SMITH BARRY CRAIG
IPC: G06Q10/00
Filed: 1993-12-21
Granted: 1999-08-24
Abstract: The invention relates to a network architecture for allocating flight inventory segments and resources based on their current market value. In particular, the present invention accesses availability information on a computer system and continuously computes a new minimum acceptance price for a given itinerary based on the current market value of the itinerary, thus allowing the resource provider to maximize incoming revenues from the sale of its inventory of reservations.
Patent CA-2120786-C (CA)
Inventor: WENZEL REINHARD
IPC: B30B3/04
Filed: 1994-04-07
Granted: 1997-02-25
Abstract: A calender arrangement having vertically-arranged upper, center and lower rollers with matching upper, center and lower carrier-blocks and a suspended spindle, comprises a support-element above a bearing-surface on the upper carrier-block. The support-element aids in lifting the suspended spindle and a carrier-nut when raising the upper carrier-block. An insert is placed between a bearing-surface on the upper carrier-block and the support-element, which comprises a horizontal slider seated on the upper carrier-block, which enables a relatively small motor to be used to reset the carrier-nut.
Patent CA-2131449-C (CA)
Inventor: SANTA JOSEPH LUIZ
IPC: F04B53/10
Filed: 1993-03-03
Granted: 2003-10-28
Abstract: A pump (10) has a pump body (11) which at least partly encloses a pair of opposing pump chambers (12) and (13). Mount-ed in the body (11) are a pair of flexible diaphragms (14 and 15) which divide the respective chambers (12 and 13) into sub-cham-bers (16, 17, 18 and 19). Extending between the diaphragms (14 and 15) is a connecting rod (20) which is connected to each di-aphragm (14 and 15) by a flange assembly (21). Located at each longitudinal end of the pump (10) are manifolds (22) which each provide an inlet duct (23) and an outlet duct (24). Each duct (23) and (24) has an associated valve assembly (25) which restricts movement of the pumped liquid in one direction through the pump (10). Also disclosed is a control valve (29) with a spool (30) having encircling grooves cooperating with detents consisting of O-rings located in corresponding internal grooves in the valve body, and a circular diaphragm having central, intermediate and peripheral portions interconnected by resilient annular hinges.
Patent CA-2136961-C (CA)
Title: Bnp antibody and immunoassay using it
Inventor: HALL CHRISTIAN
IPC: C07K16/00
Filed: 1993-06-02
Granted: 2004-03-16
Abstract: The present invention provides antibodies for use in a method of immunoassay being antibodies specific to the polypeptide comprising amino acids 1-76 of N-terminal brain natriuretic factor BNP(1-76).  Also provided are methods and kits for the diagnosis or prognosis of conditions in which BNP(1-76) is a diagnostic or predictive indicator e.g. heart failure or hypervolaemia.
Patent CA-2139010-C (CA)
Inventor: HOLLAND RICHARD J
IPC: D06M15/347
Filed: 1994-12-23
Granted: 1999-04-20
Abstract: A method for the pretreatment of fabrics and textiles to impart soil release properties thereto involves contacting the fabrics with homopolymers or copolymers of vinyl ethers.
Patent CA-2141705-C (CA)
Inventor: RYAN JOHN WILLIAM
IPC: A01C7/20
Filed: 1995-02-02
Granted: 2005-04-19
Abstract: A seeding assembly (20) for attachment to a cultivating or seeding tine (21).  The seeding assembly (20) includes a seed tube (52) movably attached to the tine (21) by parallel linkages (53, 54). A wheel (63) is attached to the seeding tube (52) to regulate the height of the lower extremity (53) of the seeding tube (52) so that a seed is delivered to a seed bed (54) prepared by a closing tool (58) located forward of the seed tube (52),
Patent CA-2148215-C (CA)
Title: Nanocrystalline metals
Inventor: ERB UWE
IPC: C25D3/20
Filed: 1993-11-26
Granted: 2005-04-12
Abstract: A process for producing nanocrystalline materials, and in particular nanocrystalline nickel having an average grain size of less than about 11 nanometers and ternary and quaternary nickel-iron alloys, such as NiFeCr and NiFeCrMn alloys, having a grain size less than about 100 nm is described. The nanocrystalline nickel is electrodeposited onto the cathode in an aqueous acidic electrolytic cell by application of a pulsed D.C. current. The ternary and quaternary Nickel-Iron alloys and other binary, ternary and quaternary alloys may be produced by D.C. electroplating or by pulsed d.C. electroplating. The cell electrolyte also contains a stress reliever, such as saccharin, which helps to control the grain size. The novel products of the invention find utility as wear resistant coatings, hydrogen storage materials, magnetic materials and as catalysts for hydrogen evolution.
Patent CA-2149276-C (CA)
Title: Braking device particularly for skates
Inventor: ZORZI CLAUDIO
IPC: A63C17/14
Filed: 1995-05-12
Granted: 2005-10-18
Abstract: Braking device, particularly for skates including a shoe composed of a quarter articulated to a shell which is in turn associated with a frame, wheels being pivoted thereto. The device is constituted by an elastic support having two essentially L-shaped arms that can be pivoted to the shell or to the frame. The elastic support is slidingly associated with the quarter at one end and a brake is associated with the arms.